Rache couldn't see clearly who opened the door from her angle, being so bundled in the blankets in the carriage.
Her view was further obstructed by the absolute mountain of a man that was Donncahd. Who seemed more focused on keeping his face straight and his back straight instead of being more concerned about getting soaked.
The only thing that was really apparent to her was the small squeak the door's opener made.
That much, at least, told her that it probably wasn't the guards, or in fact anyone traveling with them. There wasn't any reason she could think of to be startled by just seeing the Prince of Sidera when they were already traveling with him. And on top of that, he'd been rather...
Less than impressive.